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https://www.readbyqxmd.com/read/29929194/statins-and-thyroid-carcinoma-a-meta-analysis
#1
Junyu Zhao, Chunmei Xu, Jinming Yao, Changzhen Yu, Lin Liao, Jianjun Dong
BACKGROUND/AIMS: Experimental studies have reported the antineoplastic effects of statins in thyroid carcinoma; however, observational studies suggested that statins might increase the risk of thyroid carcinoma. Therefore, this study evaluated the antineoplastic effects of statins in both in vitro studies and animal models, as well as the epidemiological evidence. METHODS: Databases-PubMed, Cochrane Library, SinoMed, CNKI, Wanfang, and clinical trial registries- were searched...
June 19, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29929115/matched-pair-86-y-90-y-labeled-bivalent-rgd-bombesin-antagonist-rgd-glu-do3a-6-ahx-rm2-as-a-potential-theranostic-agent-for-prostate-cancer
#2
Nilantha Bandara, Tamila J Stott Reynolds, Rebecca Schehr, Rajendra P Bandari, Philipp J Diebolder, Stephanie Krieger, Jingli Xu, Yubin Miao, Buck E Rogers, Charles J Smith
INTRODUCTION: In this study, we describe development of a true matched-pair theranostic agent that is able to target the αV β3 integrin and the gastrin releasing peptide receptor (GRPR). We herein describe methods to metallate and characterize the new conjugate and to validate its biological efficacy by in vitro and in vivo methods. METHODS: We have previously described the development of [RGD-Glu-6Ahx-RM2] (where RGD: Arg-Gly-Asp; Glu: glutamic acid; 6-Ahx: 6-amino hexanoic acid; RM2: (D-Phe-Gln-Trp-Ala-Val-Gly-His-Sta-Leu-NH2)) that has been conjugated to a DOTA (1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid) bifunctional chelating agent (BFCA) to afford [RGD-Glu-[DO3A]-6-Ahx-RM2] peptide...
June 8, 2018: Nuclear Medicine and Biology
https://www.readbyqxmd.com/read/29929080/28-noroleanane-derived-spirocyclic-triterpenoids-and-iridoid-glucosides-from-the-roots-of-phlomoides-umbrosa-turcz-kamelin-makhm-with-their-cytotoxic-effects
#3
Duc Dat Le, Duc Hung Nguyen, Bing Tian Zhao, Jeong Ah Kim, Seok Kyu Kim, Byung Sun Min, Jae Sue Choi, Mi Hee Woo
Four undescribed 23,24-O-isopropylidene-19(18 → 17)-abeo-28-noroleanane-derived spirocyclic triterpenoids and an undescribed 28-noroleanane-derived spirocyclic triterpenoid, together with five known 28-noroleanane-derived spirocyclic triterpenoids, were isolated and identified. In addition, three undescribed iridoid glucosides and four known ones were also identified. All the isolates were identified using spectroscopic techniques, and the absolute configurations of 28-noroleanane-derived spirocyclic triterpenoids were determined by CD method for the first time...
June 18, 2018: Phytochemistry
https://www.readbyqxmd.com/read/29929036/evaluation-of-common-housekeeping-proteins-under-ischemic-conditions-and-or-rt-pa-treatment-in-bend-3-cells
#4
Pau Comajoan, Carme Gubern, Gemma Huguet, Joaquín Serena, Elisabet Kádár, Mar Castellanos
Thrombolysis with recombinant tissue plasminogen activator (rt-PA) is the only pharmacological approved treatment for ischemic stroke, despite its associated increasing risk of hemorrhagic transformation. Since many of rt-PA effects in blood-brain barrier (BBB) are not well characterized, the study of protein changes in BBB cells after rt-PA administration may help to understand its adverse effects. Our aim was to analyze protein levels of four commonly used housekeeping proteins: β-Actin, α-Tubulin, GAPDH and HPRT in bEnd...
June 18, 2018: Journal of Proteomics
https://www.readbyqxmd.com/read/29928992/nanoparticles-and-methylene-blue-for-enhancement-photodynamic-therapy
#5
V P S Jesus, L Raniero, G M Lemes, T T Bhattacharjee, P C Caetano Júnior, M L Castilho
Breast cancer is the most commonly diagnosed cancer and the second leading cause of death related to cancer among women worldwide. Screening and advancements in treatments have improved survival rate of women suffering from this ailment. Novel therapeutic techniques may further reduce cancer related mortality. One of the several emerging therapeutic options is Photodynamic Therapy (PDT) that uses light activated photosensitizer (PS) inducing cell death by apoptosis and/or necrosis. Nanotechnology has made contribution to improve photosensitizer for PDT, increasing the efficiency of therapy using gold and silver nanoparticles...
June 18, 2018: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/29928978/dual-functional-lipid-polymeric-hybrid-ph-responsive-nanoparticles-decorated-with-cell-penetrating-peptide-and-folate-for-therapy-against-rheumatoid-arthritis
#6
Jinlong Zhao, Xueyan Zhang, Xiangshi Sun, Menghui Zhao, Changhui Yu, Robert J Lee, Fengying Sun, Yulin Zhou, Youxin Li, Lesheng Teng
Methotrexate (MTX), as a disease modifying antirheumatic drug (DMARD), was first line drug to treat rheumatoid arthritis. However, the severe side effect during long term and high dosage usage limit its application. The aim of this study was to develop dual-functional lipid polymeric hybrid pH-responsive nanoparticles to deliver MTX to inflamed joints selectively. The designed MTX loaded stearic acid-octa-arginine and folic acid decorated poly lactic-co-glycolic acid (PLGA) -PK3-based lipid polymeric hybrid nanoparticles (Sta-R8-FA-PPLPNs/MTX) were composed of PK3, Folate-PEG-PLGA, egg PC, and Sta-R8...
June 18, 2018: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/29928972/metabolic-profiling-and-correlation-analysis-for-the-determination-of-killer-compounds-of-proliferating-and-clonogenic-hrt-18-colon-cancer-cells-from-lafoensia-pacari
#7
Cristiane Loiva Reichert, Denise Brentan da Silva, Carlos Alexandre Carollo, Almeriane Maria Weffort-Santos, Cid Aimbiré de Moraes Santos
ETHNOPHARMACOLOGICAL RELEVANCE: Lafoensia pacari A. St.-Hil., belonging to the family Lythraceae and popularly known as 'dedaleira' and 'mangava-brava,' is a native tree of the Brazilian Cerrado, and its barks have been traditionally used as a tonic to treat inflammatory conditions, particularly related to gastric ulcers, wounds or fevers and various types of cancer. AIM OF THE STUDY: We have previously demonstrated the apoptogenic effects of the methanolic extract of L...
June 18, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29928969/long-term-exposure-to-environmental-concentrations-of-diesel-exhaust-particles-does-not-impact-the-phenotype-of-human-bronchial-epithelial-cells
#8
Camille C Savary, Nessrine Bellamri, Claudie Morzadec, Sophie Langouët, Valérie Lecureur, Laurent Vernhet
Chronic exposure to diesel engine exhausts is associated with an increased risk of pulmonary diseases including lung cancer. Diesel engine exhausts contain large amounts of diesel exhaust particles (DEP) on which are adsorbed several carcinogenic compounds such as polycyclic aromatic hydrocarbons. Acute toxicity of high concentrations of DEP has been largely demonstrated in various in vitro cellular models. In contrast, the cellular and molecular impacts of low environmental concentrations of DEP on the phenotype of chronically exposed lung epithelial cells remain to be investigated...
June 18, 2018: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/29928962/oral-recombinant-methioninase-o-rmetase-is-superior-to-injectable-rmetase-and-overcomes-acquired-gemcitabine-resistance-in-pancreatic-cancer
#9
Kei Kawaguchi, Kentaro Miyake, Qinghong Han, Shukuan Li, Yuying Tan, Kentaro Igarashi, Tasuku Kiyuna, Masuyo Miyake, Takashi Higuchi, Hiromichi Oshiro, Zhiying Zhang, Sahar Razmjooei, Sintawat Wangsiricharoen, Michael Bouvet, Shree Ram Singh, Michiaki Unno, Robert M Hoffman
Recombinant methioninase (rMETase) was administered as an injectable drug to target methionine dependence of cancer. Recently, we observed that rMETase could be administered orally (o-rMETase) in a patient-derived orthotopic xenograft (PDOX) mouse model of melanoma. Here, we determined the efficacy of o-rMETase on a pancreatic cancer PDOX model. Forty pancreatic cancer PDOX mouse models were randomized into four groups of 10 mice each. o-rMETase was significantly more effective than i.p.-rMETase, but combination of both was significantly more effective...
June 18, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29928961/cisd2-inhibition-overcomes-resistance-to-sulfasalazine-induced-ferroptotic-cell-death-in-head-and-neck-cancer
#10
Eun Hye Kim, Daiha Shin, Jaewang Lee, Ah Ra Jung, Jong-Lyel Roh
Sulfasalazine has been repurposed to induce ferroptotic cancer cell death via inhibition of xc - -cystine/glutamate antiporter (xCT). However, cancer cells are capable of developing mechanisms to evade cell death. Therefore, we sought to determine the molecular mechanisms underlying resistance to sulfasalazine-induced ferroptosis in head and neck cancer (HNC). The effects of sulfasalazine and pioglitazone were tested in various HNC cell lines. The effects of these drugs and inhibition and overexpression of CISD2 gene were determined by evaluating viability, cell death, lipid ROS production, mitochondrial iron, and mouse tumor xenograft models...
June 18, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29928919/the-psychoactive-substance-of-cannabis-%C3%AE-9-tetrahydrocannabinol-thc-negatively-regulates-cftr-in-airway-cells
#11
Sheng-Wei Chang, Jack Wellmerling, Xiaoli Zhang, Rachael E Rayner, Wissam Osman, Sara Mertz, Amal O Amer, Mark E Peeples, Prosper N Boyaka, Estelle Cormet-Boyaka
BACKGROUND: Marijuana consumption is on the rise in the US but the health benefits of cannabis smoking are controversial and the impact of cannabis components on lung homeostasis is not well-understood. Lung function requires a fine regulation of the ion channel CFTR, which is responsible for fluid homeostasis and mucocilliary clearance. The goal of this study was to assess the effect that exposure to Δ9-tetrahydrocannabinol (THC), the psychoactive substance present in marijuana, has on CFTR expression and function...
June 18, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29928903/biochemical-characterization-of-human-tissue-kallikrein-15-and-examination-of-its-potential-role-in-cancer
#12
Panagiota S Filippou, Annie H Ren, Sudarshan Bala, Michail-Dimitrios Papaioannou, Davor Brinc, Ioannis Prassas, Theano Karakosta, Eleftherios P Diamandis
OBJECTIVE: Human tissue kallikrein 15 (KLK15) is the last cloned member of the KLK-related gene family. Despite being implicated in multiple cancers, its pathophysiological role remains unknown. We aimed to biochemically characterize KLK15 and preliminarily study its role in cancer. DESIGN & METHODS: Recombinant KLK15 protein was produced, purified to homogeneity and quantified by mass spectrometry (parallel reaction monitoring analysis). We profiled the enzymatic activity of KLK15 using fluorogenic peptide substrates, and performed kinetic analysis to discover the cleavage sites...
June 18, 2018: Clinical Biochemistry
https://www.readbyqxmd.com/read/29928885/a-natural-compound-aristoyagonine-is-identified-as-a-potent-bromodomain-inhibitor-by-mid-throughput-screening
#13
Young Hun Kim, Minsung Kim, Miyoun Yoo, Ji Eun Kim, Heung Kyoung Lee, Jung-Nyoung Heo, Chong Ock Lee, Minjin Yoo, Kwan-Young Jung, Chang-Soo Yun, Sung Woong Moon, Hye Kyung Chang, Chul-Woong Chung, Suhkneung Pyo, Sang Un Choi, Chi Hoon Park
Bromodomain-containing protein 4 (Brd4) is known to play a key role in tumorigenesis. It binds acetylated histones to regulate the expression of numerous genes. Because of the importance of brd4 in tumorigenesis, much research has been undertaken to develop brd4 inhibitors with therapeutic potential. As a result, various scaffolds for bromodomain inhibitors have been identified. To discover new scaffolds, we performed mid-throughput screening using two different enzyme assays, alpha-screen and ELISA. We found a novel bromodomain inhibitor with a unique scaffold, aristoyagonine...
June 18, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29928877/ptp1b-promotes-the-malignancy-of-ovarian-cancer-cells-in-a-jnk-dependent-mechanism
#14
Wenyan Wang, Yunxia Cao, Xiao Zhou, Bing Wei, Yu Zhang, Xiaochun Liu
Ovarian cancer is the leading cause of death from gynecological malignancies in women. Diagnosis at the early stage remains challenging and efficient treatment is still highly needed. The development and progression of this cancer is associated with many genetic and epigenetic changes, representing the dysregulation of a highly complex signaling network. Previous studies found that protein-tyrosine phosphatase 1 B (PTP1B) was aberrantly expressed in many types of ovarian cancer cells. The exact role of this protein, however, remains controversial...
June 18, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29928867/three-dimensional-contractile-muscle-tissue-consisting-of-human-skeletal-myocyte-cell-line
#15
Ai Shima, Yuya Morimoto, H Lee Sweeney, Shoji Takeuchi
This paper describes a method to construct three-dimensional (3D) contractile human skeletal muscle tissues from a cell line. The 3D tissue was fabricated as a fiber-based structure and cultured for two weeks under tension by anchoring its both ends. While myotubes from the immortalized human skeletal myocytes used in this study never contracted in the conventional two-dimensional (2D) monolayer culture, myotubes in the 3D tissue showed spontaneous contraction at a high frequency and also reacted to the electrical stimulation...
June 18, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29928824/enrichment-of-innate-lymphoid-cell-populations-in-gingival-tissue
#16
J L Brown, L Campbell, J Malcolm, A Adrados Planell, J P Butcher, S Culshaw
Innate lymphoid cells (ILCs) are a population of lymphocytes that act as the first line of immunologic defense at mucosal surfaces. The ILC family in the skin, lungs, and gastrointestinal tissues has been investigated, and there are reports of individual subsets of ILCs in the oral tissues. We sought to investigate the whole ILC population (group 1, 2, and 3 subsets) in the murine gingivae and the lymph nodes draining the oral cavity. We show that ILCs made up a greater proportion of the whole CD45+ lymphocyte population in the murine gingivae (0...
June 1, 2018: Journal of Dental Research
https://www.readbyqxmd.com/read/29928582/optimizing-fluorescent-protein-expression-for-quantitative-fluorescence-microscopy-and-spectroscopy-using-herpes-simplex-thymidine-kinase-promoter-sequences
#17
Rizwan Ali, Sivaramakrishnan Ramadurai, Frank Barry, Heinz Peter Nasheuer
The modulation of expression levels of fluorescent fusion proteins (FFPs) is central for recombinant DNA technologies in modern biology as overexpression of proteins contributes to artifacts in biological experiments. In addition, some microscopy techniques such as fluorescence correlation spectroscopy (FCS) and single-molecule-based techniques are very sensitive to high expression levels of FFPs. To reduce the levels of recombinant protein expression in comparison with the commonly used, very strong CMV promoter, the herpes simplex virus thymidine kinase (TK) gene promoter, and mutants thereof were analyzed...
June 2018: FEBS Open Bio
https://www.readbyqxmd.com/read/29928579/augmentation-of-the-therapeutic-efficacy-of-wee1-kinase-inhibitor-azd1775-by-inhibiting-the-yap-e2f1-dna-damage-response-pathway-axis
#18
Yusuke Oku, Naoyuki Nishiya, Takaaki Tazawa, Takaya Kobayashi, Nanami Umezawa, Yasuyo Sugawara, Yoshimasa Uehara
The main reasons for failure of cancer chemotherapy are intrinsic and acquired drug resistance. The Hippo pathway effector Yes-associated protein (YAP) is associated with resistance to both cytotoxic and molecular targeted drugs. Several lines of evidence indicate that YAP activates transcriptional programmes to promote cell cycle progression and DNA damage responses. Therefore, we hypothesised that YAP is involved in the sensitivity of cancer cells to small-molecule agents targeting cell cycle-related proteins...
June 2018: FEBS Open Bio
https://www.readbyqxmd.com/read/29928505/absence-of-calretinin-protein-expression-in-malignant-mesotheliomas-from-asbestos-exposed-nf2-mice-and-mouse-mesothelioma-cell-lines-from-various-mouse-strains
#19
Walter Blum, Thomas Henzi, Hugues-Etienne Châtel-Soulet, Laszlo Pecze, Janine Wörthmüller Rodriguez, Bart Vrugt, Beat Schwaller
Background: Calretinin is the most widespread positive marker for the immunohistochemical identification of malignant mesothelioma (MM) and was proposed to serve as a blood-based biomarker. Functionally, evidence has accumulated that calretinin might be implicated in MM tumorigenesis. We aimed to identify calretinin (CR; Calb2 ) in murine MM and reactive mesothelial cells in granuloma from asbestos-exposed NF2+/- mice, a line heterozygous for the tumor suppressor merlin (NF2), used as a mouse MM model...
2018: Biomarker Research
https://www.readbyqxmd.com/read/29928496/correction-reversion-of-resistance-to-oxaliplatin-by-inhibition-of-p38-mapk-in-colorectal-cancer-cell-lines-involvement-of-the-calpain-nox1-pathway
#20
Mathieu Chocry, Ludovic Leloup, Hervé Kovacic
[This corrects the article DOI: 10.18632/oncotarget.21780.].
June 1, 2018: Oncotarget
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